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    • 22. 发明授权
    • Method and apparatus for cutting
    • 切割方法和装置
    • US4830548A
    • 1989-05-16
    • US45900
    • 1987-05-04
    • Richard Kandarian
    • Richard Kandarian
    • B23B51/05B23B51/10
    • B23B51/05B23B51/102B23B51/107Y10S408/703Y10S408/713Y10T408/03Y10T408/892Y10T408/895Y10T408/8973Y10T408/90Y10T408/9065Y10T408/90993
    • A cutting tool assembly including an elongated pilot holder and a cutter blade adapted to be transversely positioned in a transverse slot in the pilot holder. The cutter blade includes cutting edges along one transverse edge of the blade and notches in the upper and lower transverse edges of the blade for respective coaction with a set scrw received in a threaded central axial bore in the lower pilot end of the pilot holder. In use, the lower pilot portion of the pilot holder is positioned in a previously provided pilot hole in a plate member, and the pilot holder is lowered and simultaneously rotated to move the cutting edge of the cutter blade into the upper face of the plate member to perform a cutting operation in the upper face, whereafter the pilot holder and cutter blade are raised, the set screw is loosened to allow removal of the cutter blade from the pilot holder, the pilot holder is lowered to dispose the slot below the lower face of the plate member, the cutter blade is rotated through 180.degree. and reinserted into the slot in the pilot holder, the set screw is threadably advanced to engage the notch in the other transverse edge of the blade holder, and the pilot holder is raised and simultaneously rotated to perform a cutting operation in the lower face of the plate member. A novel peripheral cutter blade is also disclosed, as well as a method whereby the novel peripheral cutter blade may be utilized to form a hole in a plate member.
    • 一种切割工具组件,包括细长的引导保持器和切割刀片,其适于被横向地定位在导向座中的横向槽中。 切割刀片包括沿叶片的一个横向边缘的切割边缘,并且在叶片的上横向边缘和下横向边缘中的切口分别与接收在导向托架的下导向端中的螺纹中心轴向孔中的固定刮刀相配合。 在使用中,导向架的下导向部分位于预先设置的板构件的导向孔中,并且导向架保持器下降并同时旋转以将切割刀片的切割刃移动到板构件的上表面 为了在上表面进行切割操作,此后先导保持器和切割刀片升起,固定螺钉松开以允许从导向架保持器移除切割刀片,引导保持器下降以将下面的凹槽布置 切割刀片旋转180°并重新插入导向架中的槽中,固定螺丝螺纹前进,与刀架的另一横向边缘上的切口相接合,并将导向架保持器升高, 同时旋转以在板构件的下表面中执行切割操作。 还公开了一种新颖的外围切割刀片,以及可以利用新颖的外围切割刀片在板件中形成孔的方法。